Tuning-peg for musical instruments.



J. BOHMANN.

TUNING PEG FOR MUSICAL INSTRUMENTS.

APPLICATION FILED MAR. 9, 1914.

1,135,347. Patented Apr. 13, 1915.

T r z v Isafi E 71101111 .1 26M $0146? THE NORRIS PETERS 60.. FHOTO-LITHO.. WASHINGTON. D. c.

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1 ppngaaa amrcn9,19141 js r iainaazsyiaip j c H c Be nk-moan that};

citizen of ??the United*States; Ire-siding iat i f "'e O jand "State v Chicago} in the cou of' l'llinois, *h'av'ejnvent I usefiil {Improvements inf Tuning-Pegis j fo'r; Musical Instruments; for which the follow ing is aspeci cation.

' "This? invention relates: *oreflpiarticiilarlyj to th e; tuning pegs +01: tension devices used, for tightening the'zstringsonfvarious forms I c ofmusical instruments; andktofthe arrangeit fment and mountingii of? such devices in the headpieces p a. i the objects of; this invention are;

c to'provide a simple and efficient tuning peg ;0rtighteningdevice Which 'mayb'e cheaply made and vhich may befread'ily' appliedto ,7 the head fpiece'or proper; portion of the in;

strumentand, .w11eas'qapp1-ied; -w111:0c11 p p I I i V i b" I shoulders-1,17 'an'd 'l8; and" -1f9f'and- 9O; and} l i thereby form bearings I holdfi-t against longitudinal movement; 1 The ca for "'-bearing. inember wf'is is d c improved device permits"its-usein--instrusi H I p I e p p e positionaga nstthe outerside of= the frame.

- mane ha i a elaisr lyg num ers c strings, and'vvheretherie'is aln'nit e0 strument showing my impro'ved tuning pegs i but comparatively little space Wil e durable 'and efiicient inoperation. V I I f Theconstruction and arr ngement'ofniy of room forIthe tuning pegs.

in position, parts being brokeniaway toillustrate the interior construction ;Fig. 2 is a 1on- I j 'gitudin'al sectionalvieiv'takenontheline 2+2- of Fig. 1, With parts also-broken away" to -i llustrate details" of construction; Fig; 2 l is a perspective viewfof oneof thepeg sup 1 porting devices; Figs; 3 to'5 '1nclus1ve are details of a modified'form'of construction.

As illustrated in "these drawings 6 repre 5 sents the head" piece of a musical 1nstru-- Y ment, having openings or recesses 7 5 7 there.

- in for. receiving the tuning devices'.

[gated frames 8,18", Which are preferably made of metalare inserted in these, openings; These frames, are provided on thelower sides with fiangesj9', Which'engage iththe v,

tuning of instruments having 'a lar m c lower surface of the head 6 and are also position. The strings 11 engage'with Windof-these pegs is providedivith a Worm gear 13, which is secured atqtheouter end thereof,v

i i iispec ificationibf Letters IP ate nt. I

0 am? BoHMAn 1 a c vention is the arrangement jfor mounting jand supporting the worms and fshafts for f "turning such gears? The-worms '14? are V c h Qi edOIIShafiSbr pins l5, these shafts-or" I V "for turning the same. Each ofthe Worm s afts is: provided w th shoulders for, taking up th a thei worm Ipreferitofipr'ovidelfour sh'oul I 'l 'dersasindicated-at17,Ql8, l,9]jand 20;;1The, i 1 worm gear and "its shaft 'andthey worin andv I its shaft are 'secured in' position by ineans of theJpartFQOf; ShOWnjinrFigF-Q which may p be termedaa lockingfbearin'grl f This-member q is made in the form 'lof a "cap-wins recesses- I ed m in a I the bearmgfcap-ZO is thussecured'in'posi and its shaft 115 ini position and'f locks [the worm in*operativefrelationIwithhthegwormj gearr-The s'haft'1i5'is supported entilrelyby count of the cap bing riv eted to the side? ofithe frame 8; Theframe 8"andtthebeai3 ing cap 20? may both be madeoflcast n'ietal,

Elon

the head piece. 7 ltwvillalso bevnoted that like,

' 5 Instead of'making-the frame or peg sup porting members of cast metal they maybe; I

made of sheet'metal and constructed in a, convenient manner5'as shown Figs. 3, 4 1; and 5. In this instancea blank 22-is vformed 11o f One of the princ ip lfljfeatures rooves'i having; endithrusts' of y meansz jf rivetsorthe like 21!. Whe

tioniit holdsthe=gear13andits shaft o r'p eg f i 12 in position-rand also {holds-the "Worm f 1 4 the cap QOQi-being held ing' posi'tion onfac-i such as aluminum. 1Such ;fraine, caps and V the peg parts are assembled beforethe frame "1 *lS fastened into the head piece,- thejslotr 7:

being provided With-lateral openings to re- "f v i I ceivethebearing caps '20, vWhen the parts are-thusassembledit win beseen that the only projecting ,members are the thumb pieces 16, which extendfdownward-ly f mq I p a la gem r. 0 pegs, may. bepprovided in v j a y l d's pacewhich permits the ready ber of strings,,suchas, harp guitars or" the tongues 23;

in substantially the shape shown in Fig.3 with a plurality of tongues 23 for fastening the device in position. The side portionsof the blank are provided withgroovesifiiofit over the grooves in the Worm shafts 15, or

between the shoulders on such Wormashaftsw- The'frame member 25 is provided With plurality of slots 26 ifor receiving-the After theblank has been formed, the sides are bent down to form'a a. cap or cover piece, similar to the part 20, V andthetongues 23 are insertedjthrough the slots '26 bent over to hold thecoverpiece injpositionand lock properly together.

- It will be readily seen various changes:

' may be madein the form or arrangement of Y in; said opening, means for holding said;

' the turning parts inposition.

the parts of my device to; applythem to dif ferent" instruments and, th'erefore,;j1 do not Wishto limit;myself to the exact construc x tionfor arrangement hereinset forth, except I claimrf V V p 'l.lIn a usicalfinstrument; the combinaas specified in the appended claims, in which tion of ahead piece having an opening-thera through; a frame fitting in' said opening a tuning peghaving its bearingsjin thesides V of said frame, a gear for turning said peg, a; Worm and wormshaft forturning said gear;

and a cap;piecefittinglover said Worm and j holding gear and secured to said frame for ,musical --ins trument,"having an opening ftherethrough, of fan elongated frame fittingframe in osition, a Winding peg having "its hearings in fthe sidesgof said'frame, a gear onas'aidpeg aworm engaging With said gear, a shouldered shaft forturning said WOIll'Ii a bearing member fitting over said a 7 gear, and orm and having bearings therein Copies offthis patent may. be obtained for the gears: fshafts for said shaffllthe shoulders being arranged to engagewith the sides of said member,

and means for securing said member; to-Ithe side of theframe,

'3. In a tuning peg; the eombinationof a 7 .1 peg support; apeg rotatably mounted in'said support',"'a gear on; said-peg, a shouldered shaft, a Worm on said shaft engaging With said gear a cap piece fitting over said gear and'worm, said" piecehaving, slotted-sides for engagement With the [shoulderson the" cap pieceto the side of thepegsupport t hold 'said Worm and gearin position.

A. The combination ofa rectangular frame having al fiange, around one side thereo'f,']a

tuning pegrotatably mounted insaidframe; Q a so, saidgear,a shaft carryingfsaid Worm and a 'gearbn said peg,- a Worm meshin'g xvithhaving grooves: therein at each, end of the with said groovesg and 'mean s for fastening said cap-Vito the frame whereby it Willflock proper position. 4

plate having a holeftherethrough for said peg and having a plurality of slots therein,

' WQIIIl a cap having slotted sides engaging l H the Wormin operative relation with the geargf I and will; hold said QGarand-WOrm shaft. p

bination of; a tuningrpeg,

a gear on s'aidpe a worm engaging with said'geanfa shaft orsaijd worm and a gea rcasing over aid gears and worm, sa1d cas ng being formed of bent "sheet metal, and 1m- Worm shaft.

Witnesses: 4

' AN ToL GOLLOS,'

vR. SMITH.

five eents each, by. addressing the Commissionerjof Patents, f Washington,D.G,

Worm shaft," and means'for securing said ing .tonguesfengaging with slots andf" 'benttoQhold thejcasing in position, saidcas- T" M l ing also @having bearingstherelnfor the} a JQ' PH BQHMAN JT 

